沿高炉料面径向的机械摆动雷达料形测量系统  

Measuring system of radial burden surface with mechanical swing radar in a blast furnace

作　　者：魏纪东[1] 马金芳[2] 万雷[2] 贾国利[2] 陈先中[1] 

机构地区：[1]北京科技大学自动化学院,北京100083 [2]首钢股份公司迁安钢铁公司,河北迁安064400

出　　处：《钢铁》2015年第6期94-100,共7页Iron and Steel

基　　金：国家自然科学基金重点资助项目(61333002)

摘　　要：高炉内部复杂恶劣的环境使得料面信息难以直接检测,针对高温粉尘振动强气流冲击的特殊限制,研制了新的基于机械往复摆动的工业雷达高炉料面测量系统,提出了适应于高炉料面回波检测的拟恒虚警门限检测方法,结合能量中心法及3次样条插值,得出了一种计算高炉料面径向料形曲线的有效算法,综合3D成像技术,实现了沿高炉料面径向料形的实时测量与可视化。围绕某钢铁公司2 650 m3高炉的典型应用,首次实现了工业雷达测量、数据传输、成像算法、料形分类的完整系统架构。该系统可以在高炉恶劣环境下测量任意截面的料面分布情况,为布料优化控制、高效煤气利用和节能减排提供数据支撑。Harsh environment in blast furnace poses a huge challenge for direct measurement of burden surface. Under special restrictions of high temperature,dust and strong vibration of air impact,a novel measuring system of burden surface in blast furnace which can be used to real-time measuring is developed based on mechanical reciprocating swing radar. This study presented a detection method of quasi constant false alarm threshold which is suitable for the echo detection of burden surface. An effective algorithm to calculate the radial shape curve of burden surface is concluded,in combination with the energy center of gravity method and cubic spline interpolation. The real-time measuring and visualization of the radial shape curve of burden surface is achieved by 3D imaging technology. Aiming at the typical applications of a2 650 m3 blast furnace in an Iron and steel company for the first time,this system achieved a rounded system architecture of industrial radar measuring,data transfer,imaging algorithm and material shape classification.The system makes it possible to measure the furnace burden distribution of any section under harsh environment in blast furnace. It provides data support for optimization of fabric control,efficient gas utilization,energy conservation and emissions reduction.

关 键 词：高炉 料面 工业雷达 步进频率连续波 

分 类 号：TF54[冶金工程—钢铁冶金] TF325